This document contains the outline and notes for a chemistry lecture. It introduces the syllabus and discusses ways to make chemistry more interesting, such as facilitating the transfer of knowledge from teacher to students. It also explains aromatic substitution reactions, nucleophilic substitution reactions, and carbocation stability. Additionally, it discusses safety practices for working in a chemistry lab and compares handling alkaline metals like lithium and sodium to toxic versus green chemical reactions. The document concludes by thanking the audience.

1. THIRD YEAR B.Sc.
CHEMISTRY THEORY PAPER-III
(Organic Chemistry)
Dr. G. D. SHIROLE (M.Sc. SET. Ph.D.)
ASSISTANT PROFESSOR,
DEPARTMENT OF CHEMISTRY
SHIRDI SAI RURAL INSTITUTE’S
ARTS, SCIENCE & COMMERECE COLLEGE, RAHATA
A/P/TAL-RAHATA, DIST.-AHMEDNAGAR
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2. 4/6/2022 2
 Introduction to Syllabus

3. 4/6/2022 3
 How To Make Chemistry More
Interesting………….

4. 4
Transfer of Knowledge….
Students
Knowledge
Teacher –
The facilitator

5. 5
…the choice is yours

6. Healthy/Strong man at
first to donate blood in
blood donation camp
Unhealthy/Weak man at
first to donate blood in
blood donation camp
 How we can show the attack of nucleophile
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Nu
+
Nu
+
X

7. Why aromatic compounds undergo substitution
reaction and not addition reaction
• Aromatic compounds has tendency to retain
the aromatic character after completion of
reaction….
• Its like that …… each and every day after
leaving college, we are going to our home
without forgetting. And not others home.
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8. Bimolecular Nucleophilic substitution (SN2)
Reaction
Backside attack of Nucleophile
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9.  Stability of Carbocation
 Criteria for Stability of Carbocation
1) Carbon leaving group bond should be weak.
2) Leaving group should be stable once it is departed from rest of
leaving group.
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At the time of First day of child
of Nursery
At the time of First day of
Student of TYBSC
Stronger bonding between
parents and child
Weaker bonding between parents
and student
He/She is unstable so they
readily recombine with parents
in few seconds at the school gate
He/She is stable so they do not
recombine with parents at the
college gate

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 All the ores are minerals, but converse is not
true.
 Amir Khan is known to all but converse is not
true.
 All the crows are black but converse is not
true

11. 11
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Why does it matter?
 Safe working protects:
– You
– Other lab workers
– Cleaners
– Visitors
– Your work

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 Pyro without fire
 Handling Alkaline Metals: Li, Na
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H2O

13.  Toxic reactions effect ----Forthcoming
Situation

14.  Green Reaction effect ----healthy

15. 4/6/2022 15
Thank
You